Railway Castings, as crucial load-bearing components in railway programs, have their inside microstructure straight analyzing the effectiveness and repair everyday living. Metallographic analysis, by revealing the microstructure qualities of resources, supplies a direct basis for the standard assessment of monitor castings. 1.Technological ways of metallographic Examination 1.one Meta... https://www.vevioz.com/post/1838624_rail-grinding-this-art-carried-out-amid-sparks-flying-quietly-safeguards-the-hea.html